English verb conjugation
COULD MARBLEISE

Regular verb: marbleise - marbleised - marbleised

Affirmation

Simple form	V-ing form
I could marbleise you could marbleise he could marbleise we could marbleise you could marbleise they could marbleise	I could be marbleising you could be marbleising he could be marbleising we could be marbleising you could be marbleising they could be marbleising
Perfect	V-ing perfect
I could have marbleised you could have marbleised he could have marbleised we could have marbleised you could have marbleised they could have marbleised	I could have been marbleising you could have been marbleising he could have been marbleising we could have been marbleising you could have been marbleising they could have been marbleising

Negation

Simple form	V-ing form
I couldn't marbleise you couldn't marbleise he couldn't marbleise we couldn't marbleise you couldn't marbleise they couldn't marbleise	I couldn't be marbleising you couldn't be marbleising he couldn't be marbleising we couldn't be marbleising you couldn't be marbleising they couldn't be marbleising
Perfect	V-ing perfect
I couldn't have marbleised you couldn't have marbleised he couldn't have marbleised we couldn't have marbleised you couldn't have marbleised they couldn't have marbleised	I couldn't have been marbleising you couldn't have been marbleising he couldn't have been marbleising we couldn't have been marbleising you couldn't have been marbleising they couldn't have been marbleising

Interrogative form

Simple form	V-ing form
could I marbleise? could you marbleise? could he marbleise? could we marbleise? could you marbleise? could they marbleise?	could I be marbleising? could you be marbleising? could he be marbleising? could we be marbleising? could you be marbleising? could they be marbleising?
Perfect	V-ing perfect
could I have marbleised? could you have marbleised? could he have marbleised? could we have marbleised? could you have marbleised? could they have marbleised?	could I have been marbleising? could you have been marbleising? could he have been marbleising? could we have been marbleising? could you have been marbleising? could they have been marbleising?

Interro-negative form

Simple form	V-ing form
couldn't I marbleise? couldn't you marbleise? couldn't he marbleise? couldn't we marbleise? couldn't you marbleise? couldn't they marbleise?	couldn't I be marbleising? couldn't you be marbleising? couldn't he be marbleising? couldn't we be marbleising? couldn't you be marbleising? couldn't they be marbleising?
Perfect	V-ing perfect
couldn't I have marbleised? couldn't you have marbleised? couldn't he have marbleised? couldn't we have marbleised? couldn't you have marbleised? couldn't they have marbleised?	couldn't I have been marbleising? couldn't you have been marbleising? couldn't he have been marbleising? couldn't we have been marbleising? couldn't you have been marbleising? couldn't they have been marbleising?